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- Table of Contents
Real validated TUBB3 Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-TUBB3 WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Expected bands, validated protocols, controls and antibodies — the at-a-glance facts below, then the full design guide.
| Expected band | ~50.4 kDa | |
| Gel | 5–20% (catalog H01857) | |
| Positive control | Soft tissue (IHC candidate; verify WB) +4 more | |
| Negative control | Adipose tissue (IHC candidate; verify WB) |
| PTM | Phosphorylated | |
| Caveat | Phosphorylation-state controls | |
| Gene-set association | MSigDB C7 membership | |
| Isoform | 2 isoform(s) |
The H01857 protocol combines labelled catalog values with standard starting conditions. Published comparisons retain their own sample, reagent and detection scope.
| Sample / lysate | (1) Jurkat cell lysate, (2) Human kidney lysate, (3) 3T3 cell lysate, (4) Mouse brain lysate, (5) C6 cell lysate, (6) Rat heart lysate (H01857). Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 50ug of sample under reducing conditions. After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA for 50-90 minutes. Blocked the membrane with 5% Non-fat Milk/ TBS for 1.5 hour at RT. The membrane was incubated (catalog H01857) |
| Gel % | 5–20% (catalog H01857) |
| Load | 50ug; reducing conditions (catalog H01857) |
| Transfer | a Nitrocellulose membrane at 150mA for 50-90 minutes (catalog H01857) |
| Membrane | Nitrocellulose membrane (catalog H01857) |
| Blocking | 5% Non-fat Milk/ TBS for 1.5 hour at RT (catalog H01857) |
| Primary antibody | H01857; use the WB datasheet starting dilution (standard starting point) |
| Primary incubation | overnight (catalog H01857) |
| Secondary antibody | goat anti-rabbit IgG-HRP, 1:10000 (catalog H01857) |
| Secondary incubation | 1.5 hour at RT (catalog H01857) |
| Wash | TBS-0.1%Tween 3 times with 5 minutes each (catalog H01857) |
| Detection | ECL (catalog H01857) |
TUBB3 is predicted at 50.4 kDa; isoforms and modifications could affect migration, but no empirical band or feature-specific shift is established.
| Band near 50.4 kDa | Consistent with the UniProt predicted TUBB3 mass; confirm identity with an appropriate control |
| Single band near 50.4 kDa | Isoforms 1 and 2 may overlap; their migration is not established |
| Multiple bands near 50.4 kDa | Could include isoforms 1 and 2; separate migration is not established |
| Slightly shifted band | TUBB3 has phosphorylation and polyglutamylation sites, but their effect on migration is unestablished |
| Little or no band in a soluble fraction | Cytoskeletal localization may place TUBB3 in another fraction |
| UniProt predicted mass | Provides a 50.4 kDa reference for TUBB3 |
| Full-length 450-residue chain | Provides the sequence underlying the predicted 50.4 kDa mass |
| Splice isoform 1 | May differ in size from isoform 2; direction and magnitude are unknown |
| Splice isoform 2 | May differ in size from isoform 1; direction and magnitude are unknown |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | Cytoskeletal TUBB3 may be poorly recovered in the sampled fraction | Check the cytoskeletal fraction and use a positive-control lysate |
| Band higher than expected | An apparent shift could reflect TUBB3 modification, but its effect is unestablished | Compare with a TUBB3-positive control and verify antibody specificity |
| Band lower than expected | Isoform size differences are possible but unquantified | Compare with a positive control and check for degradation |
| Multiple bands | Isoforms 1 and 2 are listed, but distinct bands are unverified | Use a TUBB3-specific knockdown or other identity control |
| Weak or no signal | TUBB3 recovery may vary with cytoskeletal extraction | Check extraction, loading, and a positive-control lysate |
Comprehensive Human Protein Atlas IHC scoring per tissue. Rows are taken directly from the HPA tissue chart — click any row's HPA link to view the source.
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Soft tissue | peripheral nerve | High | Protein (IHC) | HPA → |
| Testis | pachytene spermatocytes | High | Protein (IHC) | HPA → |
| Cerebral cortex | neuronal cells | Medium | Protein (IHC) | HPA → |
| Colon | peripheral nerve/ganglion | Medium | Protein (IHC) | HPA → |
| Hippocampus | neuronal cells | Medium | Protein (IHC) | HPA → |
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Adipose tissue | adipocytes | Not detected | Protein (IHC) | HPA → |
| Adrenal gland | glandular cells | Not detected | Protein (IHC) | HPA → |
| Appendix | glandular cells | Not detected | Protein (IHC) | HPA → |
| Bone marrow | hematopoietic cells | Not detected | Protein (IHC) | HPA → |
| Cerebellum | cells in granular layer | Not detected | Protein (IHC) | HPA → |
Deeper troubleshooting and optimisation questions for TUBB3, answered from its protein features.
Catalog antibodies with Western blot application and product-specific WB images. Evaluate suitability with the reported sample, controls and experimental conditions.
All three listed rabbit monoclonal antibodies have TUBB3 Western blot images and report human, mouse, and rat reactivity. Their captions document specific tested lysates and bands; no publication evidence or independent validation is supplied.
Which to pick: Choose by the closest documented sample: M01857-1 shows human SH-SY5Y and SIHA cells plus rat and mouse brain, with a band near 50 kDa; M01857 shows HeLa; H01857 shows Jurkat, human kidney, 3T3, mouse brain, C6, and rat heart.